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-rw-r--r--arch/s390/include/uapi/asm/vmcp.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/s390/include/uapi/asm/vmcp.h b/arch/s390/include/uapi/asm/vmcp.h
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+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * Copyright IBM Corp. 2004, 2005
+ * Interface implementation for communication with the z/VM control program
+ * Version 1.0
+ * Author(s): Christian Borntraeger <cborntra@de.ibm.com>
+ *
+ *
+ * z/VMs CP offers the possibility to issue commands via the diagnose code 8
+ * this driver implements a character device that issues these commands and
+ * returns the answer of CP.
+ *
+ * The idea of this driver is based on cpint from Neale Ferguson
+ */
+
+#ifndef _UAPI_ASM_VMCP_H
+#define _UAPI_ASM_VMCP_H
+
+#include <linux/ioctl.h>
+
+#define VMCP_GETCODE _IOR(0x10, 1, int)
+#define VMCP_SETBUF _IOW(0x10, 2, int)
+#define VMCP_GETSIZE _IOR(0x10, 3, int)
+
+#endif /* _UAPI_ASM_VMCP_H */